makima: Add an optional memory system for directives (#59)

* feat: makima: Add an optional memory system for directives: Add directive_memories database table and migration

* feat: makima: Add an optional memory system for directives: Update directive skill documentation with memory commands

* feat: makima: Add an optional memory system for directives: Add repository functions for directive memory CRUD

* feat: makima: Add an optional memory system for directives: Add frontend API functions and types for directive memory

* feat: makima: Add an optional memory system for directives: Add Rust models for directive memory

* WIP: heartbeat checkpoint

* WIP: heartbeat checkpoint

* WIP: heartbeat checkpoint

* WIP: heartbeat checkpoint

* feat: makima: Add an optional memory system for directives: Add memory panel to frontend DirectiveDetail component

* Merge remote-tracking branch 'origin/makima/makima--add-an-optional-memory-system-for-directiv-5de1e06d' into combined branch

* Merge remote-tracking branch 'origin/makima/makima--add-an-optional-memory-system-for-directiv-c8298c6c' into combined branch

* feat: makima: Add an optional memory system for directives: Create useMultiTaskSubscription hook for multi-output WebSocket streaming

* feat: makima: Add an optional memory system for directives: Create DirectiveLogStream component for stern-like multi-task output viewing

* feat: makima: Add an optional memory system for directives: Integrate log stream panel into directive detail page

2 files changed, 683 insertions, 2 deletions

diff --git a/makima/frontend/src/components/directives/DirectiveDetail.tsx b/makima/frontend/src/components/directives/DirectiveDetail.tsx
index 616c5d2..ab6ddbb 100644
--- a/makima/frontend/src/components/directives/DirectiveDetail.tsx
+++ b/makima/frontend/src/components/directives/DirectiveDetail.tsx
@@ -1,6 +1,9 @@
-import { useState } from "react";
-import type { DirectiveWithSteps, DirectiveStatus } from "../../lib/api";
+import { useState, useMemo, useEffect, useRef } from "react";
+import type { DirectiveWithSteps, DirectiveStatus, MemoryCategory } from "../../lib/api";
 import { DirectiveDAG } from "./DirectiveDAG";
+import { DirectiveLogStream } from "./DirectiveLogStream";
+import { useDirectiveMemories } from "../../hooks/useDirectiveMemories";
+import { useMultiTaskSubscription } from "../../hooks/useMultiTaskSubscription";
 
 const STATUS_BADGE: Record<DirectiveStatus, { color: string; label: string }> = {
   draft: { color: "text-[#7788aa] border-[#2a3a5a]", label: "DRAFT" },
@@ -10,6 +13,16 @@ const STATUS_BADGE: Record<DirectiveStatus, { color: string; label: string }> =
   archived: { color: "text-[#556677] border-[#2a3a5a]", label: "ARCHIVED" },
 };
 
+const CATEGORY_COLORS: Record<MemoryCategory, { text: string; border: string; bg: string; label: string }> = {
+  decision:   { text: "text-amber-400",   border: "border-amber-800",   bg: "bg-amber-900/20",   label: "Decision" },
+  context:    { text: "text-cyan-400",     border: "border-cyan-800",    bg: "bg-cyan-900/20",    label: "Context" },
+  preference: { text: "text-violet-400",   border: "border-violet-800",  bg: "bg-violet-900/20",  label: "Preference" },
+  learning:   { text: "text-emerald-400",  border: "border-emerald-800", bg: "bg-emerald-900/20", label: "Learning" },
+  other:      { text: "text-[#7788aa]",    border: "border-[#2a3a5a]",   bg: "bg-[#1a2540]",      label: "Other" },
+};
+
+const ALL_CATEGORIES: MemoryCategory[] = ["decision", "context", "preference", "learning", "other"];
+
 interface DirectiveDetailProps {
   directive: DirectiveWithSteps;
   onStart: () => void;
@@ -37,12 +50,70 @@ export function DirectiveDetail({
 }: DirectiveDetailProps) {
   const [editingGoal, setEditingGoal] = useState(false);
   const [goalText, setGoalText] = useState(directive.goal);
+  const [visibleTaskIds, setVisibleTaskIds] = useState<Set<string> | null>(null);
+  const [searchQuery, setSearchQuery] = useState("");
+  const [isLogCollapsed, setIsLogCollapsed] = useState(true);
+  const prevHadRunningRef = useRef(false);
   const badge = STATUS_BADGE[directive.status] || STATUS_BADGE.draft;
 
   const completedSteps = directive.steps.filter((s) => s.status === "completed").length;
   const totalSteps = directive.steps.length;
   const progress = totalSteps > 0 ? Math.round((completedSteps / totalSteps) * 100) : 0;
 
+  // Memory panel state
+  const [memoryOpen, setMemoryOpen] = useState(false);
+  const [addingMemory, setAddingMemory] = useState(false);
+  const [newCategory, setNewCategory] = useState<MemoryCategory>("context");
+  const [newContent, setNewContent] = useState("");
+  const [newSource, setNewSource] = useState("");
+  const [confirmClear, setConfirmClear] = useState(false);
+
+  const {
+    grouped,
+    config: memoryConfig,
+    loading: memoryLoading,
+    error: memoryError,
+    toggleEnabled,
+    add: addMemory,
+    remove: removeMemory,
+    clearAll: clearMemories,
+    refresh: refreshMemories,
+  } = useDirectiveMemories(directive.id);
+
+  const memoryEnabled = memoryConfig?.enabled ?? false;
+  const totalMemories = Object.values(grouped).reduce((sum, arr) => sum + arr.length, 0);
+
+  // Build task map from directive steps and orchestrator
+  const taskMap = useMemo(() => {
+    const map = new Map<string, string>();
+    if (directive.orchestratorTaskId) {
+      map.set(directive.orchestratorTaskId, "Orchestrator");
+    }
+    for (const step of directive.steps) {
+      if (step.taskId) {
+        map.set(step.taskId, step.name);
+      }
+    }
+    return map;
+  }, [directive.orchestratorTaskId, directive.steps]);
+
+  // Subscribe to all task outputs
+  const { connected, entries, clearEntries } = useMultiTaskSubscription({
+    taskMap,
+    enabled: taskMap.size > 0,
+  });
+
+  // Auto-expand log panel when tasks start running
+  const hasRunningTasks = directive.steps.some((s) => s.status === "running") ||
+    !!directive.orchestratorTaskId;
+
+  useEffect(() => {
+    if (hasRunningTasks && !prevHadRunningRef.current) {
+      setIsLogCollapsed(false);
+    }
+    prevHadRunningRef.current = hasRunningTasks;
+  }, [hasRunningTasks]);
+
   const handleGoalSave = () => {
     if (goalText.trim() && goalText !== directive.goal) {
       onUpdateGoal(goalText.trim());
@@ -50,6 +121,23 @@ export function DirectiveDetail({
     setEditingGoal(false);
   };
 
+  const handleAddMemory = async () => {
+    if (!newContent.trim()) return;
+    await addMemory({
+      category: newCategory,
+      content: newContent.trim(),
+      source: newSource.trim() || undefined,
+    });
+    setNewContent("");
+    setNewSource("");
+    setAddingMemory(false);
+  };
+
+  const handleClearAll = async () => {
+    await clearMemories();
+    setConfirmClear(false);
+  };
+
   return (
     <div className="flex flex-col h-full overflow-y-auto">
       {/* Header */}
@@ -249,6 +337,214 @@ export function DirectiveDetail({
         )}
       </div>
 
+      {/* Memory Panel */}
+      <div className="px-4 py-3 border-b border-[rgba(117,170,252,0.1)]">
+        {/* Memory header — always visible */}
+        <div className="flex items-center justify-between">
+          <button
+            type="button"
+            onClick={() => setMemoryOpen((v) => !v)}
+            className="flex items-center gap-1.5 group"
+          >
+            <span className="text-[10px] font-mono text-[#556677] group-hover:text-[#9bc3ff] transition-colors">
+              {memoryOpen ? "\u25BC" : "\u25B6"}
+            </span>
+            <span className="text-[10px] font-mono text-[#9bc3ff] uppercase tracking-wide">
+              Memory
+            </span>
+            {totalMemories > 0 && (
+              <span className="text-[9px] font-mono text-[#556677] ml-1">
+                ({totalMemories})
+              </span>
+            )}
+          </button>
+          <div className="flex items-center gap-2">
+            {/* Enable/disable toggle */}
+            <button
+              type="button"
+              onClick={() => toggleEnabled(!memoryEnabled)}
+              className={`text-[9px] font-mono border rounded px-1.5 py-0.5 transition-colors ${
+                memoryEnabled
+                  ? "text-emerald-400 border-emerald-800 hover:text-emerald-300"
+                  : "text-[#556677] border-[#2a3a5a] hover:text-[#7788aa]"
+              }`}
+              title={memoryEnabled ? "Disable memory" : "Enable memory"}
+            >
+              {memoryEnabled ? "ON" : "OFF"}
+            </button>
+          </div>
+        </div>
+
+        {/* Collapsible content */}
+        {memoryOpen && (
+          <div className="mt-2">
+            {memoryError && (
+              <div className="text-[10px] font-mono text-red-400 mb-2 px-2 py-1 bg-red-900/10 border border-red-800/30 rounded">
+                {memoryError}
+              </div>
+            )}
+
+            {memoryLoading ? (
+              <div className="text-[10px] font-mono text-[#556677] py-2">Loading...</div>
+            ) : totalMemories === 0 ? (
+              <div className="text-[10px] font-mono text-[#556677] py-2">
+                No memory entries yet.
+                {!memoryEnabled && " Enable memory to start capturing entries."}
+              </div>
+            ) : (
+              /* Grouped entries */
+              <div className="flex flex-col gap-2">
+                {ALL_CATEGORIES.map((cat) => {
+                  const entries = grouped[cat];
+                  if (entries.length === 0) return null;
+                  const style = CATEGORY_COLORS[cat];
+                  return (
+                    <div key={cat}>
+                      <div className="flex items-center gap-1.5 mb-1">
+                        <span className={`text-[9px] font-mono ${style.text} uppercase tracking-wider`}>
+                          {style.label}
+                        </span>
+                        <span className="text-[9px] font-mono text-[#556677]">
+                          ({entries.length})
+                        </span>
+                      </div>
+                      <div className="flex flex-col gap-1">
+                        {entries.map((entry) => (
+                          <div
+                            key={entry.id}
+                            className={`flex items-start gap-2 px-2 py-1.5 rounded border ${style.border} ${style.bg}`}
+                          >
+                            <div className="flex-1 min-w-0">
+                              <p className="text-[10px] font-mono text-[#c0d0e0] whitespace-pre-wrap break-words">
+                                {entry.content}
+                              </p>
+                              {entry.source && (
+                                <span className="text-[9px] font-mono text-[#556677] mt-0.5 block">
+                                  src: {entry.source}
+                                </span>
+                              )}
+                            </div>
+                            <button
+                              type="button"
+                              onClick={() => removeMemory(entry.id)}
+                              className="text-[9px] font-mono text-[#556677] hover:text-red-400 shrink-0 mt-0.5"
+                              title="Delete entry"
+                            >
+                              x
+                            </button>
+                          </div>
+                        ))}
+                      </div>
+                    </div>
+                  );
+                })}
+              </div>
+            )}
+
+            {/* Action bar: Add + Clear */}
+            <div className="flex items-center gap-2 mt-2 pt-2 border-t border-[rgba(117,170,252,0.1)]">
+              <button
+                type="button"
+                onClick={() => setAddingMemory((v) => !v)}
+                className="text-[10px] font-mono text-[#75aafc] hover:text-white border border-[rgba(117,170,252,0.2)] rounded px-2 py-0.5"
+              >
+                {addingMemory ? "Cancel" : "+ Add"}
+              </button>
+              {totalMemories > 0 && (
+                <>
+                  {confirmClear ? (
+                    <div className="flex items-center gap-1.5 ml-auto">
+                      <span className="text-[9px] font-mono text-red-400">Clear all?</span>
+                      <button
+                        type="button"
+                        onClick={handleClearAll}
+                        className="text-[9px] font-mono text-red-400 hover:text-red-300 border border-red-800 rounded px-1.5 py-0.5"
+                      >
+                        Yes
+                      </button>
+                      <button
+                        type="button"
+                        onClick={() => setConfirmClear(false)}
+                        className="text-[9px] font-mono text-[#7788aa] hover:text-white border border-[#2a3a5a] rounded px-1.5 py-0.5"
+                      >
+                        No
+                      </button>
+                    </div>
+                  ) : (
+                    <button
+                      type="button"
+                      onClick={() => setConfirmClear(true)}
+                      className="text-[10px] font-mono text-[#556677] hover:text-red-400 ml-auto"
+                    >
+                      Clear all
+                    </button>
+                  )}
+                </>
+              )}
+              <button
+                type="button"
+                onClick={refreshMemories}
+                className="text-[9px] font-mono text-[#556677] hover:text-[#75aafc]"
+                title="Refresh memories"
+              >
+                [refresh]
+              </button>
+            </div>
+
+            {/* Add form */}
+            {addingMemory && (
+              <div className="mt-2 p-2 bg-[#0a1628] border border-[rgba(117,170,252,0.15)] rounded flex flex-col gap-2">
+                <div className="flex items-center gap-2">
+                  <label className="text-[9px] font-mono text-[#7788aa] shrink-0">Category</label>
+                  <select
+                    value={newCategory}
+                    onChange={(e) => setNewCategory(e.target.value as MemoryCategory)}
+                    className="bg-[#1a2540] border border-[rgba(117,170,252,0.2)] rounded px-1.5 py-0.5 text-[10px] font-mono text-white flex-1"
+                  >
+                    {ALL_CATEGORIES.map((c) => (
+                      <option key={c} value={c}>
+                        {CATEGORY_COLORS[c].label}
+                      </option>
+                    ))}
+                  </select>
+                </div>
+                <textarea
+                  value={newContent}
+                  onChange={(e) => setNewContent(e.target.value)}
+                  placeholder="Memory content..."
+                  className="w-full bg-[#1a2540] border border-[rgba(117,170,252,0.2)] rounded px-2 py-1.5 text-[10px] font-mono text-white resize-y min-h-[40px] placeholder:text-[#556677]"
+                  rows={2}
+                />
+                <input
+                  type="text"
+                  value={newSource}
+                  onChange={(e) => setNewSource(e.target.value)}
+                  placeholder="Source (optional)"
+                  className="w-full bg-[#1a2540] border border-[rgba(117,170,252,0.2)] rounded px-2 py-1 text-[10px] font-mono text-white placeholder:text-[#556677]"
+                />
+                <div className="flex gap-1.5">
+                  <button
+                    type="button"
+                    onClick={handleAddMemory}
+                    disabled={!newContent.trim()}
+                    className="text-[10px] font-mono text-emerald-400 hover:text-emerald-300 border border-emerald-800 rounded px-2 py-0.5 disabled:opacity-40 disabled:cursor-not-allowed"
+                  >
+                    Save
+                  </button>
+                  <button
+                    type="button"
+                    onClick={() => { setAddingMemory(false); setNewContent(""); setNewSource(""); }}
+                    className="text-[10px] font-mono text-[#7788aa] hover:text-white border border-[#2a3a5a] rounded px-2 py-0.5"
+                  >
+                    Cancel
+                  </button>
+                </div>
+              </div>
+            )}
+          </div>
+        )}
+      </div>
+
       {/* DAG */}
       <div className="px-4 py-3 flex-1">
         <span className="text-[10px] font-mono text-[#9bc3ff] uppercase tracking-wide block mb-2">
@@ -261,6 +557,24 @@ export function DirectiveDetail({
           onSkip={onSkipStep}
         />
       </div>
+
+      {/* Log Stream */}
+      {taskMap.size > 0 && (
+        <div className="px-4 py-3 border-t border-[rgba(117,170,252,0.1)]">
+          <DirectiveLogStream
+            entries={entries}
+            taskMap={taskMap}
+            connected={connected}
+            visibleTaskIds={visibleTaskIds}
+            searchQuery={searchQuery}
+            isCollapsed={isLogCollapsed}
+            onToggleCollapse={() => setIsLogCollapsed((prev) => !prev)}
+            onSetVisibleTaskIds={setVisibleTaskIds}
+            onSetSearchQuery={setSearchQuery}
+            onClear={clearEntries}
+          />
+        </div>
+      )}
     </div>
   );
 }
diff --git a/makima/frontend/src/components/directives/DirectiveLogStream.tsx b/makima/frontend/src/components/directives/DirectiveLogStream.tsx
new file mode 100644
index 0000000..d457fe3
--- /dev/null
+++ b/makima/frontend/src/components/directives/DirectiveLogStream.tsx
@@ -0,0 +1,367 @@
+import { useRef, useEffect, useState, useCallback } from "react";
+import { SimpleMarkdown } from "../SimpleMarkdown";
+import type { MultiTaskOutputEntry } from "../../hooks/useMultiTaskSubscription";
+
+interface DirectiveLogStreamProps {
+  entries: MultiTaskOutputEntry[];
+  /** Map of taskId -> label for display */
+  taskMap: Map<string, string>;
+  /** Whether the WebSocket is connected */
+  connected: boolean;
+  /** Filter: set of visible task IDs (null = show all) */
+  visibleTaskIds: Set<string> | null;
+  /** Current search query */
+  searchQuery: string;
+  /** Whether the panel is collapsed */
+  isCollapsed: boolean;
+  /** Toggle collapse state */
+  onToggleCollapse: () => void;
+  /** Update visible task filter */
+  onSetVisibleTaskIds: (ids: Set<string> | null) => void;
+  /** Update search query */
+  onSetSearchQuery: (query: string) => void;
+  /** Clear all entries */
+  onClear: () => void;
+}
+
+// Assign stable colors to tasks
+const TASK_COLORS = [
+  "#75aafc", // blue
+  "#4ade80", // green
+  "#f59e0b", // amber
+  "#a78bfa", // violet
+  "#f472b6", // pink
+  "#22d3ee", // cyan
+  "#fb923c", // orange
+  "#34d399", // emerald
+];
+
+function getTaskColor(index: number): string {
+  return TASK_COLORS[index % TASK_COLORS.length];
+}
+
+export function DirectiveLogStream({
+  entries,
+  taskMap,
+  connected,
+  visibleTaskIds,
+  searchQuery,
+  isCollapsed,
+  onToggleCollapse,
+  onSetVisibleTaskIds,
+  onSetSearchQuery,
+  onClear,
+}: DirectiveLogStreamProps) {
+  const containerRef = useRef<HTMLDivElement>(null);
+  const [autoScroll, setAutoScroll] = useState(true);
+  const [showFilters, setShowFilters] = useState(false);
+
+  // Build task color map
+  const taskColorMap = new Map<string, string>();
+  let colorIdx = 0;
+  for (const [taskId] of taskMap) {
+    taskColorMap.set(taskId, getTaskColor(colorIdx++));
+  }
+
+  // Filter entries
+  const filteredEntries = entries.filter((entry) => {
+    // Filter by visible task IDs
+    if (visibleTaskIds && !visibleTaskIds.has(entry.taskId)) return false;
+    // Filter by search query
+    if (searchQuery) {
+      const q = searchQuery.toLowerCase();
+      const matchesContent = entry.content?.toLowerCase().includes(q);
+      const matchesLabel = entry.taskLabel?.toLowerCase().includes(q);
+      const matchesTool = entry.toolName?.toLowerCase().includes(q);
+      if (!matchesContent && !matchesLabel && !matchesTool) return false;
+    }
+    return true;
+  });
+
+  // Handle scroll
+  const handleScroll = useCallback(() => {
+    if (!containerRef.current) return;
+    const { scrollTop, scrollHeight, clientHeight } = containerRef.current;
+    const isAtBottom = scrollHeight - scrollTop - clientHeight < 50;
+    setAutoScroll(isAtBottom);
+  }, []);
+
+  // Auto-scroll when entries change
+  useEffect(() => {
+    if (autoScroll && containerRef.current) {
+      containerRef.current.scrollTop = containerRef.current.scrollHeight;
+    }
+  }, [filteredEntries.length, autoScroll]);
+
+  // Count active (running) tasks
+  const activeTaskCount = Array.from(taskMap.keys()).length;
+
+  if (isCollapsed) {
+    return (
+      <button
+        type="button"
+        onClick={onToggleCollapse}
+        className="flex items-center gap-2 w-full text-left"
+      >
+        <span className="text-[10px] font-mono text-[#9bc3ff] uppercase tracking-wide">
+          Log Stream
+        </span>
+        <span className="text-[10px] font-mono text-[#556677]">
+          [{activeTaskCount} task{activeTaskCount !== 1 ? "s" : ""}]
+        </span>
+        {connected && entries.length > 0 && (
+          <span className="flex items-center gap-1 px-1.5 py-0.5 bg-green-400/10 border border-green-400/20 rounded">
+            <span className="w-1.5 h-1.5 bg-green-400 rounded-full animate-pulse" />
+            <span className="text-[9px] font-mono text-green-400">{entries.length}</span>
+          </span>
+        )}
+        <span className="text-[10px] font-mono text-[#556677] ml-auto">[expand]</span>
+      </button>
+    );
+  }
+
+  return (
+    <div className="flex flex-col" style={{ maxHeight: "400px" }}>
+      {/* Header */}
+      <div className="flex items-center justify-between mb-2">
+        <div className="flex items-center gap-2">
+          <button
+            type="button"
+            onClick={onToggleCollapse}
+            className="text-[10px] font-mono text-[#9bc3ff] uppercase tracking-wide hover:text-white"
+          >
+            Log Stream
+          </button>
+          {connected && (
+            <span className="flex items-center gap-1 px-1.5 py-0.5 bg-green-400/10 border border-green-400/20 rounded">
+              <span className="w-1.5 h-1.5 bg-green-400 rounded-full animate-pulse" />
+              <span className="text-[9px] font-mono text-green-400">Live</span>
+            </span>
+          )}
+          <span className="text-[10px] font-mono text-[#556677]">
+            {filteredEntries.length} entries
+          </span>
+        </div>
+        <div className="flex items-center gap-2">
+          <button
+            type="button"
+            onClick={() => setShowFilters(!showFilters)}
+            className="text-[9px] font-mono text-[#556677] hover:text-[#75aafc]"
+          >
+            [filter]
+          </button>
+          {entries.length > 0 && (
+            <button
+              type="button"
+              onClick={onClear}
+              className="text-[9px] font-mono text-[#556677] hover:text-[#75aafc]"
+            >
+              [clear]
+            </button>
+          )}
+          {!autoScroll && (
+            <button
+              type="button"
+              onClick={() => {
+                setAutoScroll(true);
+                if (containerRef.current) {
+                  containerRef.current.scrollTop = containerRef.current.scrollHeight;
+                }
+              }}
+              className="text-[9px] font-mono text-[#556677] hover:text-[#75aafc]"
+            >
+              [scroll to bottom]
+            </button>
+          )}
+          <button
+            type="button"
+            onClick={onToggleCollapse}
+            className="text-[9px] font-mono text-[#556677] hover:text-[#75aafc]"
+          >
+            [collapse]
+          </button>
+        </div>
+      </div>
+
+      {/* Filters */}
+      {showFilters && (
+        <div className="flex flex-wrap items-center gap-2 mb-2 pb-2 border-b border-[rgba(117,170,252,0.1)]">
+          {/* Search */}
+          <input
+            type="text"
+            value={searchQuery}
+            onChange={(e) => onSetSearchQuery(e.target.value)}
+            placeholder="Search logs..."
+            className="bg-[#0a1628] border border-[rgba(117,170,252,0.2)] rounded px-2 py-0.5 text-[10px] font-mono text-white w-[160px] placeholder-[#556677]"
+          />
+          {/* Task filter buttons */}
+          <button
+            type="button"
+            onClick={() => onSetVisibleTaskIds(null)}
+            className={`text-[9px] font-mono px-1.5 py-0.5 rounded border ${
+              visibleTaskIds === null
+                ? "text-white border-[#75aafc] bg-[rgba(117,170,252,0.15)]"
+                : "text-[#556677] border-[#2a3a5a] hover:text-white"
+            }`}
+          >
+            All
+          </button>
+          {Array.from(taskMap.entries()).map(([taskId, label]) => {
+            const isVisible = visibleTaskIds === null || visibleTaskIds.has(taskId);
+            const color = taskColorMap.get(taskId) || "#75aafc";
+            return (
+              <button
+                key={taskId}
+                type="button"
+                onClick={() => {
+                  if (visibleTaskIds === null) {
+                    // Switch from "all" to just this task
+                    onSetVisibleTaskIds(new Set([taskId]));
+                  } else if (visibleTaskIds.has(taskId)) {
+                    const next = new Set(visibleTaskIds);
+                    next.delete(taskId);
+                    if (next.size === 0) {
+                      onSetVisibleTaskIds(null); // back to all
+                    } else {
+                      onSetVisibleTaskIds(next);
+                    }
+                  } else {
+                    const next = new Set(visibleTaskIds);
+                    next.add(taskId);
+                    if (next.size === taskMap.size) {
+                      onSetVisibleTaskIds(null); // all selected = show all
+                    } else {
+                      onSetVisibleTaskIds(next);
+                    }
+                  }
+                }}
+                className={`text-[9px] font-mono px-1.5 py-0.5 rounded border transition-colors ${
+                  isVisible
+                    ? "border-current bg-[rgba(117,170,252,0.1)]"
+                    : "border-[#2a3a5a] opacity-50 hover:opacity-75"
+                }`}
+                style={{ color: isVisible ? color : "#556677" }}
+              >
+                {label}
+              </button>
+            );
+          })}
+        </div>
+      )}
+
+      {/* Log output */}
+      <div
+        ref={containerRef}
+        onScroll={handleScroll}
+        className="flex-1 overflow-auto bg-[#0a0f18] rounded p-2 font-mono text-xs min-h-0"
+        style={{ minHeight: "120px" }}
+      >
+        {filteredEntries.length === 0 ? (
+          <div className="text-[#555] italic text-[10px]">
+            {entries.length === 0
+              ? connected
+                ? "Waiting for output..."
+                : "No tasks subscribed"
+              : "No entries match filter"}
+          </div>
+        ) : (
+          <div className="space-y-1">
+            {filteredEntries.map((entry, idx) => (
+              <LogEntry
+                key={idx}
+                entry={entry}
+                color={taskColorMap.get(entry.taskId) || "#75aafc"}
+              />
+            ))}
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+
+function LogEntry({
+  entry,
+  color,
+}: {
+  entry: MultiTaskOutputEntry;
+  color: string;
+}) {
+  const [expanded, setExpanded] = useState(false);
+
+  // Skip empty content for tool results
+  if (entry.messageType === "tool_result" && !entry.content) return null;
+
+  return (
+    <div className="flex gap-2 items-start py-0.5">
+      {/* Task label */}
+      <span
+        className="text-[9px] shrink-0 font-semibold uppercase tracking-wide w-[80px] truncate text-right"
+        style={{ color }}
+        title={entry.taskLabel}
+      >
+        {entry.taskLabel}
+      </span>
+      <span className="text-[#2a3a5a] shrink-0">|</span>
+
+      {/* Content */}
+      <div className="flex-1 min-w-0">
+        {entry.messageType === "assistant" && (
+          <SimpleMarkdown content={entry.content} className="text-[#9bc3ff] text-[10px]" />
+        )}
+        {entry.messageType === "tool_use" && (
+          <div className="flex items-center gap-1">
+            <span className="text-yellow-500 text-[10px]">*</span>
+            <span className="text-[#75aafc] text-[10px]">{entry.toolName || "unknown"}</span>
+            {entry.toolInput && Object.keys(entry.toolInput).length > 0 && (
+              <button
+                onClick={() => setExpanded(!expanded)}
+                className="text-[#555] hover:text-[#9bc3ff] text-[9px]"
+              >
+                {expanded ? "[-]" : "[+]"}
+              </button>
+            )}
+            {expanded && entry.toolInput && (
+              <pre className="text-[9px] text-[#555] bg-[#0a1525] p-1 overflow-x-auto mt-0.5 block w-full">
+                {JSON.stringify(entry.toolInput, null, 2)}
+              </pre>
+            )}
+          </div>
+        )}
+        {entry.messageType === "tool_result" && (
+          <div className="text-[10px]">
+            <span className={entry.isError ? "text-red-400" : "text-green-500"}>
+              {entry.isError ? "x" : "+"}
+            </span>{" "}
+            <span className="text-[#555]">
+              {entry.content.split("\n")[0]}
+              {entry.content.includes("\n") && "..."}
+            </span>
+          </div>
+        )}
+        {entry.messageType === "result" && (
+          <div className="text-[10px]">
+            <span className="text-green-500 font-semibold">Done</span>
+            {entry.costUsd !== undefined && (
+              <span className="text-[#555] ml-2">${entry.costUsd.toFixed(4)}</span>
+            )}
+            {entry.durationMs !== undefined && (
+              <span className="text-[#555] ml-2">{(entry.durationMs / 1000).toFixed(1)}s</span>
+            )}
+          </div>
+        )}
+        {entry.messageType === "error" && (
+          <span className="text-red-400 text-[10px]">{entry.content}</span>
+        )}
+        {entry.messageType === "system" && (
+          <span className="text-[#555] text-[9px] uppercase">{entry.content}</span>
+        )}
+        {!["assistant", "tool_use", "tool_result", "result", "error", "system"].includes(
+          entry.messageType
+        ) && (
+          <span className="text-[#555] text-[10px]">{entry.content}</span>
+        )}
+      </div>
+    </div>
+  );
+}